WMOD00277

• Contract/Permit #: 14-06-D-6467
• Title: An Operational Adaptation Program for the Colorado River Basin
• Prepared By: Lewis O. Grant, Chappell, Crow, Mielke Jr., Rasmussen, Shobe, Stockwell, Wykstra
• Date: 10/1/1969
• State: CO
• Country: United States
• Weather Modification - Doc Type: Report

TABLE X. --Estimate of scale changes during seeded periods with respect to
non-seeded periods as computed by three statistical methods. Scale changes
are shown as a function of 500 mb wind speed.
With Controls Without Controls
Total Sample Scale Scale
Stratification Sample Size Change Change
(MPS) Size L'tilized Method (%) P- Value (%) P- Value
Climax I
o thru 11 S 25 S 25 NP1 -24 .215 +16 .345
NS 27 NS 27 NP2 -28 .255 0 .496
(S22, NS20) PAR -27 .125
12 thru 16 S 27 S 27 NP1 +114 .0071 +49 .198
NS 21 NS 21 NP2 +88 .142 +20 .319
(8l9,NS16) PAR +76 .0054
1 7 thru 21 S 28 S 28 NPl -17 .218 <-50 .0268
NS28 NS 28 NP2 -4 .405 -38 .075
(S 17, NS23) PAR +4 .44R
22 thru 27 S 26 S 26 NPl +192 .0154 > +200 .0068
NS 25 NS 25 NP2 +110 .0222 > +200 .0087
(S22, NS18) PAR +64 .0222
28 thru 43 S 14 S 14 NPl -31 .236 -40 .218
NS 30 NS 30 NP2 -47 .113 -39 .198
(810, NS25) PAR -9 .363
Climax II
o thru 11 S 15 S 15 NPl -18 .345 -2 .464
NS 17 NS 17 NP2 -50 .268 +4 .394
(813, NS13) PAR -12 .367
12 thru 16 S 16 S 16 NP1 +95 .0239 +9 .405
NS 13 NS 13 NP2 +116 .323 +53 .203
(812,NSll) PAR +79 .0256
1 7 thru 21 S 9 S 9 NP1 -17 .284 <-50 .078
NS 12, NS 12 NP2 +4 .371 -20 .209
(S 6, NS 11) PAR -9 .425
22 thru 27 S 12 S 12 NP1 +198 .064 >+200 .0384
NS 13 NS 13 NP2 +37 .159 >+200 .0197
(SlO, NS9) PAR +53 .156
28 thru 43 S 9 S 9 NP1 -20 .298 -32 .171
NS 11 NS 11 NP2 <-50 .129 -32 . 171
(S8, NS9) PAR -38 .125
Wolf Creek Summit
o thru 13 S 43 S 35 NP1 -7 .436 +17 .298
NS 66 NS 61 NP2 +21 .209 +33 .169
(S2l, NS35) PAR -3 .444
14 thru 21 S 65 S 59 NP1 +53 .0329 +42 .102
NS 84 NS 83 NP2 +65 .0170 +41 .071
(S38, NS60) PAR +82 .0002
22 thru 27 S 38 S 36 NPl -9 .302 -30 .140
NS 24 NS 21 NP2 -13 .278 -19 . 187
(S20, NSI4) PAR +4 .440
28 thru 42 S 18, S 17 NP1 +41 .198 +64 .156
NS 24 NS 16 NP2 +17 .367 +37 .284
(815, N812) PAR +47 .050

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